| article html file updated | 7 February 2020 22:57 CET | Update | https://www.mdpi.com/2073-4395/7/1/12 |
| article html file updated | 23 September 2019 05:32 CEST | Update | N/A |
| article html file updated | 4 May 2019 12:08 CEST | Update | N/A |
| article html file updated | 27 March 2017 09:44 CEST | Update | N/A |
| article html file updated | 9 February 2017 09:32 CET | Original file | N/A |
| article xml uploaded. | 9 February 2017 09:31 CET | Original file | https://www.mdpi.com/2073-4395/7/1/12/xml |
| article pdf uploaded. | 9 February 2017 09:31 CET | Version of Record | https://www.mdpi.com/2073-4395/7/1/12/pdf |
